Will there be more XXL chars than any other rarity? This might affect the ability to evolve XXL chars after their first release.

So I was thinking about why silver bells are worth 2/3 as much as gold bells. New characters get added to perma banner eventually, right?

Currently there are more XXL than XL units in the game. If the trend is to release the majority of new units as XXL, there will be more of them than any other rarity. That means in addition to the lowest pull rate, your chance of getting a specific character is divided further among all the XXLs. Even the wishlist only offer a slight increase, not significant enough to really tip the scale.

So the ability to evolve a specific character after their banner is going to be a lot harder. Get them to 3 stars if they are a strong unit at release.